diff -Naur at-3.1.10.2.orig/Makefile.in at-3.1.10.2/Makefile.in
--- at-3.1.10.2.orig/Makefile.in	2009-01-31 15:38:54.000000000 +0100
+++ at-3.1.10.2/Makefile.in	2009-01-31 15:39:22.000000000 +0100
@@ -78,7 +78,7 @@
 y.tab.c y.tab.h: parsetime.y
 	$(YACC) -d parsetime.y
 
-lex.yy.c: parsetime.l
+lex.yy.c: parsetime.l y.tab.h
 	$(LEX) -i parsetime.l
 
 atrun: atrun.in
